🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.39 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 170.2

Radius: 13.2

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 0.7 AU - 0.84 AU

Year: 466 Days

Day: 9.3 Hours

Environment

Temp: -162 °C

Axial Tilt: 22.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 25,565,430 km

• M1: 164,408 km (0.108 R)
• M2: 582,983 km (0.067 R)
• M3: 1,103,883 km (0.04 R)
• M4: 1,685,968 km (0.101 R)
• M5: 2,151,816 km (0.109 R)
• M6: 2,601,657 km (0.1 R)
• M7: 3,893,135 km (0.098 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 361.9

Radius: 10.5

Gravity: 3.28 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 1.1 AU - 1.12 AU

Year: 807 Days

Day: 10.8 Hours

Environment

Temp: -173 °C

Axial Tilt: 41 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 25,565,430 km

• M1: 130,599 km (0.079 R)
• M2: 459,415 km (0.048 R)
• M3: 800,049 km (0.053 R)
• M4: 1,712,148 km (0.104 R)
• M5: 2,239,480 km (0.104 R)
• M6: 3,116,872 km (0.084 R)
• M7: 3,568,508 km (0.094 R)
• M8: 4,121,272 km (0.043 R)
• M9: 4,698,570 km (0.096 R)
• M10: 5,773,730 km (0.032 R)
• M11: 6,204,721 km (0.119 R)
• M12: 7,195,059 km (0.105 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 228.7

Radius: 14

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 1.03 AU - 1.21 AU

Year: 818 Days

Day: 5.4 Hours

Environment

Temp: -172 °C

Axial Tilt: 16.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 25,565,430 km

• M1: 174,132 km (0.092 R)
• M2: 913,145 km (0.115 R)
• M3: 1,793,828 km (0.106 R)
• M4: 2,663,141 km (0.05 R)
• M5: 3,155,318 km (0.078 R)
• M6: 3,811,155 km (0.103 R)
• M7: 4,368,707 km (0.109 R)
• M8: 5,218,572 km (0.086 R)
• M9: 5,683,373 km (0.103 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 232.2

Radius: 14.7

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 1.01 AU - 1.27 AU

Year: 840 Days

Day: 11.2 Hours

Environment

Temp: -177 °C

Axial Tilt: 26.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 25,565,430 km

• M1: 184,005 km (0.088 R)
• M2: 731,683 km (0.038 R)
• M3: 1,253,331 km (0.099 R)
• M4: 1,792,631 km (0.096 R)
• M5: 2,566,202 km (0.091 R)
• M6: 3,431,925 km (0.103 R)
• M7: 3,914,079 km (0.063 R)
• M8: 4,456,221 km (0.056 R)
• M9: 5,080,344 km (0.115 R)
• M10: 5,641,784 km (0.07 R)
• M11: 6,262,915 km (0.051 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 686.8

Radius: 13.7

Gravity: 3.66 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 1.85 AU - 2.87 AU

Year: 2503 Days

Day: 6.3 Hours

Environment

Temp: -196 °C

Axial Tilt: 14.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 25,565,430 km

• M1: 184,155 km (0.101 R)
• M2: 743,801 km (0.068 R)
• M3: 1,298,958 km (0.055 R)
• M4: 1,800,859 km (0.117 R)
• M5: 2,378,157 km (0.115 R)
• M6: 2,981,336 km (0.12 R)
• M7: 4,802,241 km (0.055 R)
• M8: 5,284,246 km (0.114 R)
• M9: 6,427,173 km (0.044 R)
• M10: 8,491,624 km (0.106 R)
• M11: 9,837,556 km (0.106 R)
• M12: 13,526,041 km (0.111 R)
• M13: 16,003,531 km (0.118 R)
• M14: 16,667,447 km (0.117 R)
• M15: 17,995,726 km (0.115 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 892.9

Radius: 13.9

Gravity: 4.62 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 4.21 AU - 5.95 AU

Year: 7903 Days

Day: 14.1 Hours

Environment

Temp: -225 °C

Axial Tilt: 1.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 25,565,430 km

• M1: 172,935 km (0.077 R)
• M2: 736,770 km (0.069 R)
• M3: 1,352,814 km (0.063 R)
• M4: 2,287,950 km (0.039 R)
• M5: 2,777,135 km (0.109 R)
• M6: 3,842,870 km (0.118 R)
• M7: 4,743,000 km (0.063 R)
• M8: 5,354,407 km (0.064 R)
• M9: 6,923,988 km (0.078 R)
• M10: 7,671,977 km (0.055 R)
• M11: 9,707,406 km (0.057 R)
• M12: 11,374,525 km (0.068 R)
• M13: 11,970,672 km (0.084 R)
• M14: 13,049,422 km (0.067 R)
• M15: 15,075,875 km (0.093 R)
• M16: 22,660,038 km (0.084 R)
• M17: 28,040,026 km (0.111 R)
• M18: 30,041,796 km (0.058 R)
• M19: 30,556,711 km (0.118 R)
• M20: 36,383,848 km (0.119 R)
• M21: 37,323,322 km (0.106 R)
• M22: 39,128,370 km (0.111 R)
• M23: 39,866,486 km (0.074 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 51.5

Radius: 5.4

Gravity: 1.77 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 5.93 AU - 9.09 AU

Year: 14206 Days

Day: 19.3 Hours

Environment

Temp: -234 °C

Axial Tilt: 85.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 25,565,430 km

• M1: 70,311 km (0.086 R)
• M2: 242,049 km (0.084 R)
• M3: 626,965 km (0.103 R)
• M4: 1,626,727 km (0.074 R)
• M5: 2,869,437 km (0.062 R)
• M6: 3,631,788 km (0.073 R)
• M7: 4,593,253 km (0.103 R)
• M8: 5,093,807 km (0.101 R)
• M9: 6,565,103 km (0.072 R)
• M10: 7,298,282 km (0.104 R)
• M11: 11,084,454 km (0.108 R)
• M12: 12,686,647 km (0.091 R)
• M13: 14,752,444 km (0.066 R)
• M14: 16,973,973 km (0.057 R)
• M15: 18,904,384 km (0.098 R)
• M16: 24,139,412 km (0.079 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 518 - 18,225 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit